:-C. Rangarajan
C:-Ashok Bhushan
D:-Aravind Subramanian
Correct Answer:- Option-A
Question20:-Which Indian historian was selected for Japan's Fukuoka Prize 2015 7
A:-Ranajit Guha
-Ramachandra Guha
C:-Romila Thapar
D:-Irfan Habib
Correct Answer:- Option-B
Question21:-Who invented CT scan ?
A:-Madam Curie
B:-W.C. Roentgen
C:-G.N. Hounsfield
D:-Isaac Newton
Correct Answer:- Option-C
Question22:-Which metal is commonly used as target in X-ray tubes ?
A:-Lead
B:-Cobalt
C:-Radium
D:-Tungsten
Correct Answer:- Option-D
Question23:-The recommended total filtration for a diagnostic unit of >70 Kvp is
5 mm Al
1.5mm Al
C:-4.4 mm Al
D:-0.5 mm Al
Correct Answer:- Option-A
Question24:-What is NOT done by grids ?
A:-Remove scattered radiation
B:-Increase patient radiation
C:-Produce film with better contrast
D:-Decrease patient dose
Correct Answer:- Option-D
Question25:-As speed of intensifying screen increases, the exposure required
A:-Increases
B:-Decreases
C:-Will not change
D:-Doubles
Correct Answer:- Option-B
Question26:-Which chemical is commonly used as fixing agent ?
A:-Hydroquinone
B:-Sodium thio sulphate
C:-Sodium sulphite
D:-Potassium bromide
Correct Answer:- Option-B
Question27:-Safe light in dark rooms are
A:-Red & < 15 watts
B:-Yellow & < 15 watts
C:-Red & > 15 watts
D:-Yellow & > 15 watts
Correct Answer:- Option-A
Question28:-In an automatic processor which step is NOT required, when compared to manual processing
A:-Developing
B:-Fixing
C:-Rincing
D:-Drying
Correct Answer:- Option-C